Ditto ditto ditto to the above. Mine was nice stainless steel, quite expensive and looked good. But simply didn't work properly at all. Someone snapped it up in the garage sale I had, and then I felt guilty for days for even selling the thing. But the lady was soooo excited to have found it, that I figure she had a few minutes of pleasure before she realised too that she'd bought a bomb.
Lily

I have had 2 plastic ones which did conk out on me after a while, and now have 2 stainless steel ones which work fine thus far (knocking on wood as I type). I figure since both plastic ones each lasted over a year and I refilled them both several times, their under $4.00 cost was worth the several cans of commercial spray I might have purchased. So they conked out but were for me still a money saver in the long run. I was given a steel one for a gift and am using that at the moment but had already purchased a steel one before the gift arrived and it is waiting in the wings so to speak. My gourmet cook SIL told me the trick is to release the pressure when you are done using the thing every time. I do that and think it helps but who knows. For me, they are all a moneysaver but this is just MHO.